Azumanga Daioh is a Japanese comedy manga by Kiyohiko Azuma. It was serialized by MediaWorks in the shōnen manga magazine Dengeki Daioh from 1999 to 2002 and collected in four bound volumes. In May 2009, in conjunction with the 10th anniversary of the manga, three additional chapters began serialization in Shogakukan's Monthly Shōnen Sunday under the title Azumanga Daioh: Supplementary Lessons.